Casio LK-270 61 Key Personal Lighted Keyboard with MP3 Connection, USB Port, SD Card Slot, and 570 Tones 61 piano-style keys Touch Response (2 sensitivity levels, off) 48-note polyphony (maximum) 570 high-quality tones including stereo grand piano tones 180 rhythms including 74 ethnic rhythms and 20 patterns for piano play